Table 1.
Schedule of EPIa vaccines at weeks 6, 10, and 14 in Pakistan.
| Treatment arm | 6 week (41, 42, 43, and 44 days) | 10 week (69, 70, 71, and 72 days) | 14 week (97, 98, 99, and 100 days) |
| Arm 1 (Intervention) | Four standard EPI reminder SMSb | Four standard EPI reminder SMS | Four standard EPI reminder SMS |
| Arm 2 (Control) | One-time counseling at the baseline survey | One-time counseling at the baseline survey | One-time counseling at the baseline survey |
aEPI: Expanded Program of Immunization. Standard EPI in Pakistan is oral poliovirus vaccine (OPV) plus bacillus Calmette-Guerin at birth; DPT-Hep-B-Hib and OPV at 6, 10, and 14 weeks, and measles at 9 months and second year of life at the time of the study. The pneumococcal vaccine was included in the Pakistan EPI program after the study.
bSMS: short message service.